diff options
| -rw-r--r-- | Documentation/gpu/amdgpu.rst | 24 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 90 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c | 143 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.h | 29 |
6 files changed, 292 insertions, 1 deletions
diff --git a/Documentation/gpu/amdgpu.rst b/Documentation/gpu/amdgpu.rst index 0efede580039..d9ea09ec8e24 100644 --- a/Documentation/gpu/amdgpu.rst +++ b/Documentation/gpu/amdgpu.rst @@ -202,3 +202,27 @@ busy_percent .. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c :doc: busy_percent + +GPU Product Information +======================= + +Information about the GPU can be obtained on certain cards +via sysfs + +product_name +------------ + +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c + :doc: product_name + +product_number +-------------- + +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c + :doc: product_name + +serial_number +------------- + +.. kernel-doc:: drivers/gpu/drm/amd/amdgpu/amdgpu_device.c + :doc: serial_number diff --git a/drivers/gpu/drm/amd/amdgpu/Makefile b/drivers/gpu/drm/amd/amdgpu/Makefile index c2bbcdd9c875..210d57a4afc8 100644 --- a/drivers/gpu/drm/amd/amdgpu/Makefile +++ b/drivers/gpu/drm/amd/amdgpu/Makefile @@ -55,7 +55,7 @@ amdgpu-y += amdgpu_device.o amdgpu_kms.o \ amdgpu_vf_error.o amdgpu_sched.o amdgpu_debugfs.o amdgpu_ids.o \ amdgpu_gmc.o amdgpu_mmhub.o amdgpu_xgmi.o amdgpu_csa.o amdgpu_ras.o amdgpu_vm_cpu.o \ amdgpu_vm_sdma.o amdgpu_discovery.o amdgpu_ras_eeprom.o amdgpu_nbio.o \ - amdgpu_umc.o smu_v11_0_i2c.o + amdgpu_umc.o smu_v11_0_i2c.o amdgpu_fru_eeprom.o amdgpu-$(CONFIG_PERF_EVENTS) += amdgpu_pmu.o diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 2992a49ad4a5..b0597a84e137 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -974,6 +974,11 @@ struct amdgpu_device { bool pm_sysfs_en; bool ucode_sysfs_en; + + /* Chip product information */ + char product_number[16]; + char product_name[32]; + char serial[16]; }; static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index faa3e7102156..f422ef58b4d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -64,6 +64,7 @@ #include "amdgpu_xgmi.h" #include "amdgpu_ras.h" #include "amdgpu_pmu.h" +#include "amdgpu_fru_eeprom.h" #include <linux/suspend.h> #include <drm/task_barrier.h> @@ -138,6 +139,72 @@ static DEVICE_ATTR(pcie_replay_count, S_IRUGO, static void amdgpu_device_get_pcie_info(struct amdgpu_device *adev); /** + * DOC: product_name + * + * The amdgpu driver provides a sysfs API for reporting the product name + * for the device + * The file serial_number is used for this and returns the product name + * as returned from the FRU. + * NOTE: This is only available for certain server cards + */ + +static ssize_t amdgpu_device_get_product_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = ddev->dev_private; + + return snprintf(buf, PAGE_SIZE, "%s\n", adev->product_name); +} + +static DEVICE_ATTR(product_name, S_IRUGO, + amdgpu_device_get_product_name, NULL); + +/** + * DOC: product_number + * + * The amdgpu driver provides a sysfs API for reporting the part number + * for the device + * The file serial_number is used for this and returns the part number + * as returned from the FRU. + * NOTE: This is only available for certain server cards + */ + +static ssize_t amdgpu_device_get_product_number(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = ddev->dev_private; + + return snprintf(buf, PAGE_SIZE, "%s\n", adev->product_number); +} + +static DEVICE_ATTR(product_number, S_IRUGO, + amdgpu_device_get_product_number, NULL); + +/** + * DOC: serial_number + * + * The amdgpu driver provides a sysfs API for reporting the serial number + * for the device + * The file serial_number is used for this and returns the serial number + * as returned from the FRU. + * NOTE: This is only available for certain server cards + */ + +static ssize_t amdgpu_device_get_serial_number(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct drm_device *ddev = dev_get_drvdata(dev); + struct amdgpu_device *adev = ddev->dev_private; + + return snprintf(buf, PAGE_SIZE, "%s\n", adev->serial); +} + +static DEVICE_ATTR(serial_number, S_IRUGO, + amdgpu_device_get_serial_number, NULL); + +/** * amdgpu_device_supports_boco - Is the device a dGPU with HG/PX power control * * @dev: drm_device pointer @@ -1975,6 +2042,8 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev) amdgpu_xgmi_add_device(adev); amdgpu_amdkfd_device_init(adev); + amdgpu_fru_get_product_info(adev); + init_failed: if (amdgpu_sriov_vf(adev)) amdgpu_virt_release_full_gpu(adev, true); @@ -3189,6 +3258,24 @@ fence_driver_init: return r; } + r = device_create_file(adev->dev, &dev_attr_product_name); + if (r) { + dev_err(adev->dev, "Could not create product_name"); + return r; + } + + r = device_create_file(adev->dev, &dev_attr_product_number); + if (r) { + dev_err(adev->dev, "Could not create product_number"); + return r; + } + + r = device_create_file(adev->dev, &dev_attr_serial_number); + if (r) { + dev_err(adev->dev, "Could not create serial_number"); + return r; + } + if (IS_ENABLED(CONFIG_PERF_EVENTS)) r = amdgpu_pmu_init(adev); if (r) @@ -3271,6 +3358,9 @@ void amdgpu_device_fini(struct amdgpu_device *adev) device_remove_file(adev->dev, &dev_attr_pcie_replay_count); if (adev->ucode_sysfs_en) amdgpu_ucode_sysfs_fini(adev); + device_remove_file(adev->dev, &dev_attr_product_name); + device_remove_file(adev->dev, &dev_attr_product_number); + device_remove_file(adev->dev, &dev_attr_serial_number); if (IS_ENABLED(CONFIG_PERF_EVENTS)) amdgpu_pmu_fini(adev); if (amdgpu_discovery && adev->asic_type >= CHIP_NAVI10) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c new file mode 100644 index 000000000000..990dee6e22d5 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c @@ -0,0 +1,143 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ +#include "amdgpu.h" +#include "amdgpu_i2c.h" +#include "smu_v11_0_i2c.h" +#include "atom.h" + +#define I2C_PRODUCT_INFO_ADDR 0xAC +#define I2C_PRODUCT_INFO_ADDR_SIZE 0x2 +#define I2C_PRODUCT_INFO_OFFSET 0xC0 + +int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr, + unsigned char *buff) +{ + int ret, size; + struct i2c_msg msg = { + .addr = I2C_PRODUCT_INFO_ADDR, + .flags = I2C_M_RD, + .buf = buff, + }; + buff[0] = 0; + buff[1] = addrptr; + msg.len = I2C_PRODUCT_INFO_ADDR_SIZE + 1; + ret = i2c_transfer(&adev->pm.smu_i2c, &msg, 1); + + if (ret < 1) { + DRM_WARN("FRU: Failed to get size field"); + return ret; + } + + /* The size returned by the i2c requires subtraction of 0xC0 since the + * size apparently always reports as 0xC0+actual size. + */ + size = buff[2] - I2C_PRODUCT_INFO_OFFSET; + /* Add 1 since address field was 1 byte */ + buff[1] = addrptr + 1; + + msg.len = I2C_PRODUCT_INFO_ADDR_SIZE + size; + ret = i2c_transfer(&adev->pm.smu_i2c, &msg, 1); + + if (ret < 1) { + DRM_WARN("FRU: Failed to get data field"); + return ret; + } + + return size; +} + +int amdgpu_fru_get_product_info(struct amdgpu_device *adev) +{ + unsigned char buff[32]; + int addrptr = 0, size = 0; + + /* If algo exists, it means that the i2c_adapter's initialized */ + if (!adev->pm.smu_i2c.algo) { + DRM_WARN("Cannot access FRU, EEPROM accessor not initialized"); + return 0; + } + + /* There's a lot of repetition here. This is due to the FRU having + * variable-length fields. To get the information, we have to find the + * size of each field, and then keep reading along and reading along + * until we get all of the data that we want. We use addrptr to track + * the address as we go + */ + + /* The first fields are all of size 1-byte, from 0-7 are offsets that + * contain information that isn't useful to us. + * Bytes 8-a are all 1-byte and refer to the size of the entire struct, + * and the language field, so just start from 0xb, manufacturer size + */ + addrptr = 0xb; + size = amdgpu_fru_read_eeprom(adev, addrptr, buff); + if (size < 1) { + DRM_ERROR("Failed to read FRU Manufacturer, ret:%d", size); + return size; + } + + /* Increment the addrptr by the size of the field, and 1 due to the + * size field being 1 byte. This pattern continues below. + */ + addrptr += size + 1; + size = amdgpu_fru_read_eeprom(adev, addrptr, buff); + if (size < 1) { + DRM_ERROR("Failed to read FRU product name, ret:%d", size); + return size; + } + + /* Start at 2 due to buff using fields 0 and 1 for the address */ + memcpy(adev->product_name, &buff[2], size); + adev->product_name[size] = '\0'; + + addrptr += size + 1; + size = amdgpu_fru_read_eeprom(adev, addrptr, buff); + if (size < 1) { + DRM_ERROR("Failed to read FRU product number, ret:%d", size); + return size; + } + + memcpy(adev->product_number, &buff[2], size); + adev->product_number[size] = '\0'; + + addrptr += size + 1; + size = amdgpu_fru_read_eeprom(adev, addrptr, buff); + + if (size < 1) { + DRM_ERROR("Failed to read FRU product version, ret:%d", size); + return size; + } + + addrptr += size + 1; + size = amdgpu_fru_read_eeprom(adev, addrptr, buff); + + if (size < 1) { + DRM_ERROR("Failed to read FRU serial number, ret:%d", size); + return size; + } + + memcpy(adev->serial, &buff[2], size); + adev->serial[size] = '\0'; + + return 0; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.h new file mode 100644 index 000000000000..968115c97e33 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.h @@ -0,0 +1,29 @@ +/* + * Copyright 2020 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + */ + +#ifndef __AMDGPU_PRODINFO_H__ +#define __AMDGPU_PRODINFO_H__ + +int amdgpu_fru_get_product_info(struct amdgpu_device *adev); + +#endif // __AMDGPU_PRODINFO_H__ |